<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <style>
    * {
      margin: 0;
      padding: 0;
    }
  </style>
  <script src="../lib/three/three.js"></script>
</head>

<body>

</body>

</html>

<script>
  // 创建一个场景
  const scene = new THREE.Scene();

  // 创建一个相机 视点
  const camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 1, 1000);
  // 设置相机的位置
  camera.position.set(0, 0, 20);

  // 创建一个渲染器
  const renderer = new THREE.WebGLRenderer();
  // 设置渲染器尺寸
  renderer.setSize(window.innerWidth, window.innerHeight);

  document.body.appendChild(renderer.domElement);

  // 添加一个立方体
  // 定义了一个立方体的对象
  const geometry = new THREE.PlaneBufferGeometry(10, 10, 2, 2);

  // 创建一个纹理加载器
  const loader = new THREE.TextureLoader();
  loader.load('../assets/grass.png', (texture) => {
    // 创建材质
    const lambert = new THREE.MeshLambertMaterial({ 
      map: texture,
    })

    const mesh = new THREE.Mesh(geometry, lambert);
    
    // 添加到场景里
    scene.add(mesh);
  })

  // 添加灯光
  const spotLight = new THREE.SpotLight(0xffffff);
  spotLight.position.set(-10, 10, 90);
  scene.add(spotLight);

  renderer.render(scene, camera);

  // const animation = () => {

  //   // 渲染
  //   renderer.render(scene, camera);

  //   requestAnimationFrame(animation);
  // }
  // animation()
</script>